 | | PID filter source code
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Hello all, Is there anyone hwo has information about motion control, and specially about writing a PID filter for the HC11. I want to control a 3-axis machine. The 3 engines all have encoders and i want to write a PID filter where i can control the (...) (26 years ago, 23-Jul-98, to lugnet.robotics.handyboard)
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| | What about Fischertechnik?
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I assume the Handy Board (HB) can be used with Fischertechnik products and parts. Is this correct? I just ran across Fischertechnik and was wondering if you all have any comments (preferably based on experience) about how this line of products (...) (26 years ago, 22-Jul-98, to lugnet.robotics.handyboard)
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| | Re: Recharging a Battery
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(...) That's a Gel Cell I assume (that's what I call them anyway). Depending on how you use your battery, you can charge it one of two ways (listed on the chart on your battery). I choose to charge my Gel Cells (I have a bunch of different types) (...) (26 years ago, 22-Jul-98, to lugnet.robotics.handyboard)
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| | Recharging a Battery
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I have a 'sealed rechargeable' Lead-Acid battery. It's specs are 12 volts at 2.0 Ah. It also has a nifty chart on the outside saying: | Charging @ 20 Deg. C | Voltage Regulation | Initial Current | | Standby Use | 13.50-13.80V | No Limit | | Cyclic (...) (26 years ago, 22-Jul-98, to lugnet.robotics.handyboard)
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| | Re: Memory usage
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This question how has an answer in the FAQ. Please see: (URL) is the answer now on the FAQ page. Fred How much of the Handy Board's 32K memory is available for user programs running under Interactive C? Here is an approximate breakdown of how (...) (26 years ago, 21-Jul-98, to lugnet.robotics.handyboard)
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| | Memory usage
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I don't have a handy board but am considering getting one. I like what I have seen so far! I have searched the FAQ and the mail list archives but can't find the answer to my question. How much of the 32k does Interactive C take up? OR MORE TO THE (...) (26 years ago, 21-Jul-98, to lugnet.robotics.handyboard)
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| | Re: Need Help to solve the algorithm.
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The paper referred to is at ftp://cherupakha.med...Martin.pdf My personal advise is that you simply *get started*. hook up your motors and start driving your robot around. see what it can do, how it moves. then connect sensors and gain an intuition (...) (26 years ago, 21-Jul-98, to lugnet.robotics.handyboard)
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| | RE: Need Help to solve the algorithm.
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Are you asking for how to do the ded reckoning from counting steps, or how to get the sonar to measure your location relative to nearby walls? Mike Ross ---...--- From: phillip chia[SMTP:philchia@s...et.com.sg] Sent: Monday, July 20, 1998 3:38 AM (...) (26 years ago, 21-Jul-98, to lugnet.robotics.handyboard)
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| | Re: Sonar Help!
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I have tried the official Handy Board Sonar hookup from the Web sie and didn't get very good results. Most of the time, the sonar would produce seemingly random numbers (including negatives). Every once in a while, it would give a constant value of (...) (26 years ago, 21-Jul-98, to lugnet.robotics.handyboard)
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| | Re: Sonar Help!
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In your message you said: (...) what kind of ext batt are you using? are the diodes in series with that? what voltage do you have on the sonar when it's in operation? are the sonar's ground and the HB's ground connected? fred (...) (26 years ago, 21-Jul-98, to lugnet.robotics.handyboard)
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| | Re: Need Help to solve the algorithm.
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May I suggest that you get a copy of a paper that Fred Martin wrote (should be on his website, that is where I got it). It talks about the experience of several of his students and their approaches and pitfalls is designing a robot not too (...) (26 years ago, 21-Jul-98, to lugnet.robotics.handyboard)
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| | Re: LCD routines
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Hello, I have developed a machine code programming system for programming the handyboard. It is similar to the Buffalo routines on the Motorolla 68HC11 chips. It allows a relatively simple way of machine code interaction to the display. The program (...) (26 years ago, 21-Jul-98, to lugnet.robotics.handyboard)
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| | LCD routines
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I would like to be able to use the LCD screen on the handy board while using just straight assembly programs. Is there anyone that has some example code, or know where I can look for explanations of how to do this. Thanks, Joe Hoffmann E-Mail (...) (26 years ago, 20-Jul-98, to lugnet.robotics.handyboard)
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| | Sonar Help!
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Hi, I am having problems getting my Polaroid sonar to work properly. Following Kent Farnsworth's directions, I have hooked up the sonar: Sonar ====> Handy Board ECHO TIC3 (Top position) V+ TIC3 (Middle) GND TIC3 (Bottom) INIT PIN 9 of 2nd L293DNE (...) (26 years ago, 20-Jul-98, to lugnet.robotics.handyboard)
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| | re: paralell port
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Somebody request some info about paralllel port look in thisd site for an example writing in C (URL) (26 years ago, 20-Jul-98, to lugnet.robotics.handyboard)
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| | Need Help to solve the algorithm.
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Hello, I really need help to solve the alogrithm in using the HD with interactive C program . Presently. I'm constructing a mobile robot to move within a battle field of 5metres by 5metres. In side the battle filed, the "mines" are visible with (...) (26 years ago, 20-Jul-98, to lugnet.robotics.handyboard)
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| | Another HandyBoard for sale
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Hi all, I also have a Handyboard for sale, but with a 20x4 display and the IR demodulator. No casing, however. Price is just slightly more at $235, includes shipping. It has a A0 processor. I'm selling it because it's a bit "overpowered" for my (...) (26 years ago, 20-Jul-98, to lugnet.robotics.handyboard)
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| | Comm problems
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Hi all, I am currently having problems getting my HB to talk with my computer. I am using IC 3.2. Because of time and work pressures I have not been able to play witht my bot for a couple of months. Everything worked fine then. I didn't change (...) (26 years ago, 20-Jul-98, to lugnet.robotics.handyboard)
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| | (Fwd) Extra HB For Sale
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Oops! I had my date set incorrect, on my PC. This was sent out on July 19th not June 10th. ------- Forwarded Message Follows ------- From: "Mike Davis" <ipscone@halcyon.com> To: handyboard@media.mit.edu Date sent: Wed, 10 Jun 1998 08:41:19 -0700 (...) (26 years ago, 19-Jul-98, to lugnet.robotics.handyboard)
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| | Parellel port control
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Has anybody tried using the "delay function, outportb function and inportb function" that comes with Borland C++ 5.01. I am trying to control a set of LEDs conncted to my printer port using a C++ program. My program woudn't compile. The error is (...) (26 years ago, 19-Jul-98, to lugnet.robotics.handyboard)
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